Which is not a recognized discount under the wind mitigation law?

The correct answer is plumbing changes because they are not part of the wind mitigation discounts recognized under the wind mitigation law. Wind mitigation discounts are specifically designed to incentivize homeowners to take measures that reduce wind damage during storms. These measures focus on the structural and protective features of a building, such as roof covering, roof-to-wall connections, and opening protections, which are crucial for enhancing a structure's resilience against high winds.

Roof covering refers to the materials used to protect the roof from wind and water incursion, impacting the building's overall strength. Roof-to-wall connections are vital as they determine how well the roof is anchored to the walls, which can prevent roof uplift during storms. Opening protections include impact-resistant windows and doors, which are essential in preventing wind and debris from breaking into the home.

Plumbing changes, while they may be important for overall home maintenance and safety, do not directly relate to a structure's ability to withstand wind damage and, therefore, do not qualify for discounts under the wind mitigation law.